Nearly two dozen fires ignited earlier this week and grew as strong, dry winds spread the flames over fields and freeways. The eight-county blaze destroyed more than 3,500 homes, businesses, and other structures, and sent residents fleeing for their lives. At least 31 people are dead.

A majority of the area's thousands of wineries have been spared. But winemakers won't know the extent of the damage until evacuation orders are lifted and they can return to their estates.

The wine-lover's paradise looked eerie with clouds of smoke hanging overhead. The extent of the damage is unknown, but here are the wineries we know have been lost.

An inferno called the Tubbs Fire has burned more than 34,000 acres in and around the city of Santa Rosa, according to the Cal Fire website. The Atlas Fire in Napa has devastated an additional 43,000 acres. Firefighters were still battling the wildfires on Thursday morning.

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Signorello Estate winery, located on Silverado Trail, has been destroyed. Flames climbed the ivy-covered walls of the winery headquarters on Monday, and it eventually collapsed.